• ul and ol may only contain li elements
• But an li element can contain any inline or block-level element including another list

<ul>
<li>First list item</li>
<li>Second list item that has <h3>A Title</h3> 
<p>A paragraph</p> and another <p>small paragraph</p> 
in the middle of this list item</li>
<li>Third list item</li>
</ul>

• First list item
• Second list item that has

  A Title

  A paragraph

  and another

  small paragraph

  in the middle of this list item
• Third list item